(19)
(11) EP 4 393 719 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.09.2024 Bulletin 2024/39

(43) Date of publication A2:
03.07.2024 Bulletin 2024/27

(21) Application number: 24172482.2

(22) Date of filing: 27.06.2018
(51) International Patent Classification (IPC): 
B41J 35/36(2006.01)
B41J 17/36(2006.01)
B41J 17/02(2006.01)
B41J 17/10(2006.01)
 B41J 2/36(2006.01)
B41J 29/393(2006.01)
B41J 17/07(2006.01)
B41J 33/16(2006.01)
(52) Cooperative Patent Classification (CPC):
B41J 35/36; B41J 2/36; B41J 17/36; B41J 17/02; B41J 17/07; B41J 17/10; B41J 33/16
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 28.06.2017 GB 201710350
28.06.2017 GB 201710351

(62) Application number of the earlier application in accordance with Art. 76 EPC:
18739589.2 / 3645295

(71) Applicant: Videojet Technologies Inc.
Wood Dale, IL 60191-1073 (US)

(72) Inventors:
  • Ellis, Jeremy Videojet Technologies (Nottingham) Limited
    Nottingham, Nottinghamshire NG7 2QP (GB)
  • Hart, Philip Videojet Technologies (Nottingham) Limited
    Nottingham, Nottinghamshire NG7 2QP (GB)
  • Walley, Gareth Videojet Technologies (Nottingham) Limited
    Nottingham, Nottinghamshire NG7 2QP (GB)

(74) Representative: Marks & Clerk LLP 
15 Fetter Lane
London EC4A 1BW
London EC4A 1BW (GB)

   


(54) TRANSFER PRINTER AND METHOD


(57) A method for monitoring a characteristic of a printed image of a thermal transfer printer. The method comprises providing a ribbon and a substrate at a printing location of the thermal transfer printer. The method further comprises printing an image on the substrate at the printing location by transferring ink from a region of the ribbon in a printing operation, a negative image being formed on the region of ribbon. The method further comprises transporting the region of ribbon, by a ribbon transport system, from the printing location towards an imaging location along a ribbon transport path. The method further comprises when a characteristic of the ribbon transport meets a predetermined criterion, obtaining, by an image capture system, a ribbon image of the negative image. The method further comprises processing said ribbon image to generate data indicative of the characteristic of the printed image.







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